.login-form {   
    background-color:lightblue; 
    width:500;   
    border:0 ;    
    align:center;   
    cellpadding:0;   
    cellspacing:1;   
    bgcolor:#CCCCCC;  
    text-align: center; 
} 
.dang-nhap{  
    background-color:lightblue;  
    width:500;  
}
.enter{  
    text-align: right; 
} 
.check-box {  
    background-color:lightblue;  
    width:500; 
    border:0 ;   
    cellpadding:0;   
    cellspacing:1;  
    bgcolor:#CCCCCC;  } 
u{     color: blue; } 
h1{     color:lightseagreen;  
} 

